package com.review.test;

import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class MyTest02 {

    public static int[] RBYGNum(){
        int[] ints = new int[4];


        return ints;
    }

    public static void main(String[] args) {
        Lock lock = new ReentrantLock();
    }

}
